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Finding the Fourth Proportional to 259,662.26, 388,468.51 and 196,663.91

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Solution

The fourth proportional to 259,662.26, 388,468.51 and 196,663.91 is: 294,219.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,662.26 : 388,468.51 = 196,663.91 : x
  2. Step 2: Convert to fraction form
    259,662.26/388,468.51 = 196,663.91/x
  3. Step 3: Cross multiply
    259,662.26x = 388,468.51 × 196,663.91
  4. Step 4: Simplify right side
    259,662.26x = 76,397,733,654.47
  5. Step 5: Solve for x
    x = 76,397,733,654.47/259,662.26
  6. Step 6: Final answer
    x = 294,219.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.